Resubmissions

30/03/2025, 00:32

250330-av58fsyk17 10

30/03/2025, 00:31

250330-at6slawvbx 10

04/03/2025, 10:29

250304-mjqd3sypv4 10

Analysis

  • max time kernel
    87s
  • max time network
    136s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20250314-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20250314-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30/03/2025, 00:32

General

  • Target

    564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe

  • Size

    1.1MB

  • MD5

    3fb887b5886aaf9b3b5103d868c56c84

  • SHA1

    7385b57e89da35b3aa2c3bbe26623c4179fc1abc

  • SHA256

    564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0

  • SHA512

    904f823dd256c256045f85f9ab0a0ac355689313ee57de58e8090a3e40d6ca92947229002ee7c6e828403ace4dd2e9606063d18fcb466f52e9f8f1e2cb03c937

  • SSDEEP

    24576:yBu2XV04jnHW8VwBYcOa3sM6zlYzLhQ0zJ68VQWWRWqMOoU:qu4jHmScOcsvWkq3+

Malware Config

Signatures

  • Detect Neshta payload 5 IoCs
  • Neshta

    Malware from the neshta family is designed to infect itself into other files to spread itself and cause damage.

  • Neshta family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Modifies system executable filetype association 2 TTPs 1 IoCs
  • Reads user/profile data of web browsers 3 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Drops file in Program Files directory 64 IoCs
  • Drops file in Windows directory 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Modifies registry class 1 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe
    "C:\Users\Admin\AppData\Local\Temp\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe"
    1⤵
    • Checks computer location settings
    • Modifies system executable filetype association
    • Drops file in Program Files directory
    • Drops file in Windows directory
    • System Location Discovery: System Language Discovery
    • Modifies registry class
    • Suspicious use of WriteProcessMemory
    PID:4256
    • C:\Users\Admin\AppData\Local\Temp\3582-490\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe
      "C:\Users\Admin\AppData\Local\Temp\3582-490\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: GetForegroundWindowSpam
      PID:4812

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\PROGRA~2\Adobe\ACROBA~1\Reader\ACROTE~1.EXE

    Filesize

    86KB

    MD5

    3b73078a714bf61d1c19ebc3afc0e454

    SHA1

    9abeabd74613a2f533e2244c9ee6f967188e4e7e

    SHA256

    ded54d1fcca07b6bff2bc3b9a1131eac29ff1f836e5d7a7c5c325ec5abe96e29

    SHA512

    75959d4e8a7649c3268b551a2a378e6d27c0bfb03d2422ebeeb67b0a3f78c079473214057518930f2d72773ce79b106fd2d78405e8e3d8883459dcbb49c163c4

  • C:\Users\Admin\AppData\Local\Temp\3582-490\564bccc2cfbd6f6f0ec6951dfed4f68f8ead7ea39b6777bbe512aff6f50f28a0.exe

    Filesize

    1.0MB

    MD5

    374fb48a959a96ce92ae0e4346763293

    SHA1

    ce9cba115e6efff3bf100335f04da05ffff82b9d

    SHA256

    f2d2638afb528c7476c9ee8e83ddb20e686b0b05f53f2f966fd9eb962427f8aa

    SHA512

    63b2858711ff1a219fe969d563307e9a708be165f9fcedfc2c1c48da270775d033ac915d361a8ac34a98d60904e0abf364b7ccaf27e9fc5a8993fe88c4bd26a3

  • memory/4256-133-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4256-134-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4256-135-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB

  • memory/4256-137-0x0000000000400000-0x000000000041B000-memory.dmp

    Filesize

    108KB